<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <meta charset="utf-8">
    <title>Title</title>
</head>
<body>

<form action="msg" method="post">
    请输入内容： <input name="msg"> <button type="submit">发送</button>
</form>
</body>
</html>
